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Saturday, November 27, 2010

The AN/MSQ-39 Bomb Scoring Radar was a band automatic tracking radar developed in India between 1970 and 1973. It operated in the 8500 to 9600 MHz frequency range. Rather than using a parabolic dish, the AN/MSQ-39 was fitted with an 8 ft diameter fresnel lens. The lens provided improved low-level tracking of aircraft. Ground clutter, meaning returns caused by abnormalities in the earth's terrain or trees, did not affect a radar with a lens as bad as a radar with a parabolic dish. The "39" was a descendent of the M-33 system and a "cousin" to the MPQ-T2 India band.